CN105946102A - Spreading device for quartz production - Google Patents
Spreading device for quartz production Download PDFInfo
- Publication number
- CN105946102A CN105946102A CN201610501297.9A CN201610501297A CN105946102A CN 105946102 A CN105946102 A CN 105946102A CN 201610501297 A CN201610501297 A CN 201610501297A CN 105946102 A CN105946102 A CN 105946102A
- Authority
- CN
- China
- Prior art keywords
- roll shaft
- rotating shaft
- belt
- mould
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010453 quartz Substances 0.000 title claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 150000001875 compounds Chemical class 0.000 claims description 24
- 238000007599 discharging Methods 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/29—Producing shaped prefabricated articles from the material by profiling or strickling the material in open moulds or on moulding surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Paper (AREA)
Abstract
The invention relates to a spreading device for quartz production, which comprises a hopper, a supporting plate and support legs. A discharge hole is formed in a lower end of the hopper. A driving motor is fixed on an outer sidewall of the discharge hole and connected to a rotating shaft A that is connected to a roll shaft A. A belt pulley A is disposed on the rotating shaft A. A rotating shaft B is disposed at a right side of the rotating shaft A and connected to a roll shaft B that is encircled by a helical blade. A belt pulley B is disposed on the rotating shaft B, and a belt is wound around the belt pulley B. A fixing plate is disposed at the bottom of the supporting plate, and spreading pieces are disposed at the bottom of the fixing plates. A holder is disposed on the supporting plate, and a scraper is mounted at the bottom of the holder. A fixed vertical plate is fixed to the middle portions of the support legs. A roll shaft C is disposed at one end of the fixed vertical plate, while a roll shaft D is disposed at the other end of the fixed vertical plate. A large belt is wound around the roll shaft D, and a die is placed on the large belt. The roll shaft C is connected to a rotating motor. The spreading device for quartz production has the advantages of flatness in spreading and convenience in use.
Description
Technical field
The present invention relates to a kind of lying device, belong to quartz production technical field, be specifically related to a kind of quartz and produce
Use lying device.
Background technology
It is known that artificial quartz in lump is the natural quartz by more than 90% and the colorant of about 10%, resin and other tune
Save the additive composition of bonding, solidification etc.;Being through negative-pressure vacuum, dither molding, (temperature height is basis in heating cure
The sheet material that production method depending on the kind of firming agent processes;Its quality hard (Mohs' hardness 5-7), compact structure are (close
Degree 2.5g/ cubic centimetre), there is the spy such as wear-resisting, pressure, high temperature resistant, anticorrosive, impermeable that other ornament materials are incomparable
Property;Need to pave in a mold by each constitutive material being sufficiently mixed producing before quartz, be then passed through negative-pressure vacuum,
Dither is compressing for quartzite slate;But, in the most traditional mixing raw material paving process, it is common that use people
Work charging paves, and such work both wastes of manpower that pave greatly reduce again the production efficiency of quartz, thus govern
The economic development of enterprise.
Summary of the invention
The present invention provides a kind of stone smooth, that the efficiency that paves is high, easy to use that paves for overcoming the deficiencies in the prior art
Diamond stone production lying device.
The technical scheme is that a kind of quartz production lying device, it includes hopper, gripper shoe and props up
Lower limb:
Described hopper is fixing on the supporting plate, and the lower end of hopper is provided with discharging opening, and the lateral wall of described discharging opening is fixed
Having driving motor, described driving motor to connect has the middle part connection of rotating shaft A, described rotating shaft A to have roll shaft A, described roll shaft A
Side rotating shaft A on be provided with belt pulley A;The right side of rotating shaft A is provided with the middle part connection of rotating shaft B, described rotating shaft B roller
Axle B, the outer whole body of described roll shaft B is provided with helical blade, and the rotating shaft B of the side of roll shaft B is provided with belt pulley B, described
The outer whole body of belt pulley B be wound with belt, the other end of described belt is wrapped on belt pulley A;
The middle part of the bottom of described gripper shoe is provided with fixed plate, and two rows that are provided with that the bottom of described fixed plate is straggly spread out
Tile;Being provided with fixed mount in the gripper shoe on the right side of fixed plate, the bottom of described fixed mount is provided with scraper;
A described midleg has been bolted fixing portrait, and one end of described fixing portrait is provided with roll shaft C, Gu
The other end determining portrait is provided with roll shaft D, and the outer whole body of described roll shaft D is wound with big belt, another of described big belt
End is wrapped in the outer whole body of roll shaft C, and big belt is placed with mould;One end of roll shaft C is connected by axle electric rotating machine.
The outermost edge of described helical blade and the outward flange smooth contact of roll shaft A.
The upper end of described supporting leg is fixed on the bottom of gripper shoe.
The plane at the minimum point place of the described sheet that paves is not less than the plane at the top edge place of mould.
The plane at the minimum point place of described scraper is not less than the plane at the top edge place of mould, and the width of scraper
Degree is not less than the width of mould.
The lower section on the right side of described roll shaft D is placed with compound recycling bin.
The present invention is achieved in that the driving motor of the present invention runs simultaneously with electric rotating machine, in the fortune driving motor
Under row, rotating shaft A operates along with the operation driving motor, thus the roll shaft A being arranged on rotating shaft A and belt pulley A is along with turning
Axle A rotates, and then the belt pulley B being connected by belt with belt pulley A is operated, further such that roll shaft B rotation, at roll shaft A and
During roll shaft B rotates, under the effect of helical blade, the compound in hopper paves the most uniformly in mould;?
In the running of electric rotating machine, under the cooperation of big belt, roll shaft C and roll shaft D runs, it is achieved thereby that mould is at big belt
On transmission, finally make compound be paved with mould;Along with the transmission to mould of the big belt, when mould is sent to pave under sheet
Fang Shi, two rows of setting straggly bottom fixed plate pave sheet effect under, at the beginning of in mould, rough compound obtains
Walk is smooth;When mould is sent to the lower section of scraper, under the effect of scraper, the compound in mould is calibrated;Final mould
The smooth good compound that paves in tool is sent to next operation together with mould, and the compound that big belt is scattered is recovered to
Compound recycling bin recycles.
The invention has the beneficial effects as follows: the mode that paves that the present invention uses hopper to fix, mould moves, effectively raise
Effectively coordinating of the uniformity that paves of compound, roll shaft A and roll shaft B and helical blade, improve the stand of compound in hopper
The paving uniformity, and compound has been carried out the mixing of final step;In order to ensure compound in mould can flat pattern,
The present invention uses the sheet that paves the most smooth, then makes last smooth of scraper, thus the compound in ensure that mould is with smooth
Uniform state enters into next operation;The present invention has the advantage smooth, that the efficiency that paves is high, easy to use that paves.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention a kind of quartz production lying device.
Fig. 2 is the partial top view of the present invention a kind of quartz production lying device.
Fig. 3 is the partial schematic diagram of the present invention a kind of quartz production lying device.
Fig. 4 is the sheet side view that paves of the present invention a kind of quartz production lying device.
Fig. 5 is the sheet upward view that paves of the present invention a kind of quartz production lying device.
Fig. 6 is the scraper side view of the present invention a kind of quartz production lying device.
Fig. 7 is the scraper upward view of the present invention a kind of quartz production lying device.
Wherein: 1, hopper 2, gripper shoe 3, supporting leg 4, discharging opening 5, driving motor 6, rotating shaft A 7, roll shaft A 8, skin
Belt wheel A 9, rotating shaft B 10, roll shaft B 11, helical blade 12, belt pulley B 13, belt 14, fixed plate 15, the sheet 16 that paves,
Fixed mount 17, scraper 18, fixing portrait 19, roll shaft C 20, roll shaft D 21, big belt 22, mould 23, electric rotating machine
24, compound recycling bin.
Detailed description of the invention
The present invention is described further below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figs. 1-7, a kind of quartz production lying device, it includes hopper 1, gripper shoe 2 and supporting leg 3:
Described hopper 1 is fixed in gripper shoe 2, and the lower end of hopper 1 is provided with discharging opening 4, the lateral wall of described discharging opening 4
Being fixed with driving motor 5, described driving motor 5 connects has the middle part connection of rotating shaft A6, described rotating shaft A6 to have roll shaft A7, institute
It is provided with belt pulley A8 on the rotating shaft A6 of the side of the roll shaft A7 stated;The right side of rotating shaft A6 is provided with rotating shaft B9, described rotating shaft
The middle part of B9 connects has roll shaft B10, the outer whole body of described roll shaft B10 to be provided with helical blade 11, turning of the side of roll shaft B10
Being provided with belt pulley B12 on axle B9, the outer whole body of described belt pulley B12 is wound with belt 13, another of described belt 13
End is wrapped on belt pulley A8;The middle part of the bottom of described gripper shoe 2 is provided with fixed plate 14, the end of described fixed plate 14
What portion was straggly be provided with two rows pave sheet 15;Being provided with fixed mount 16 in the gripper shoe 2 on the right side of fixed plate 14, described is fixing
The bottom of frame 16 is provided with scraper 17;The middle part of described supporting leg 3 has been bolted fixing portrait 18, and described is fixing perpendicular
One end of version 18 is provided with roll shaft C19, and the other end of fixing portrait 18 is provided with roll shaft D20, the outer whole body of described roll shaft D20
Being wound with big belt 21, the other end of described big belt 21 is wrapped in the outer whole body of roll shaft C19, and big belt 21 is placed with mould
Tool 22;One end of roll shaft C19 is connected by axle electric rotating machine 23.
The mode that paves that the present invention uses hopper to fix, mould moves, effectively raises the uniformity that paves of compound,
Effectively coordinating of roll shaft A and roll shaft B and helical blade, improve the uniformity that paves of compound in hopper, and to mixing
Material has carried out the mixing of final step;In order to ensure compound in mould can flat pattern, the present invention uses and paves at the beginning of sheet
Walk smooth, then make of scraper last smooth, thus the compound in ensure that mould enters into down with the state of even uniform
One operation;The present invention has the advantage smooth, that the efficiency that paves is high, easy to use that paves.
Embodiment 2
As shown in figs. 1-7, a kind of quartz production lying device, it includes hopper 1, gripper shoe 2 and supporting leg 3;
Described hopper 1 is fixed in gripper shoe 2, and the lower end of hopper 1 is provided with discharging opening 4, the lateral wall of described discharging opening 4
Being fixed with driving motor 5, described driving motor 5 connects has the middle part connection of rotating shaft A6, described rotating shaft A6 to have roll shaft A7, institute
It is provided with belt pulley A8 on the rotating shaft A6 of the roll shaft A7 stated;The right side of rotating shaft A6 is provided with rotating shaft B9, in described rotating shaft B9
Portion connects has roll shaft B10, the outer whole body of described roll shaft B10 to be provided with helical blade 11, and the rotating shaft B9 of roll shaft B10 is provided with
Belt pulley B12, the outer whole body of described belt pulley B12 is wound with belt 13, and the other end of described belt 13 is wrapped in belt
On wheel A8;The middle part of the bottom of described gripper shoe 2 is provided with fixed plate 14, the setting that the bottom of described fixed plate 14 is straggly
Two rows are had to pave sheet 15;Fixed mount 16 it is provided with, the bottom peace of described fixed mount 16 in the gripper shoe 2 on the right side of fixed plate 14
Equipped with scraper 17;The middle part of described supporting leg 3 has been bolted fixing portrait 18, and one end of described fixing portrait 18 sets
Being equipped with roll shaft C19, the other end of fixing portrait 18 is provided with roll shaft D20, and the outer whole body of described roll shaft D20 is wound with big belt
21, the other end of described big belt 21 is wrapped in the outer whole body of roll shaft C19, and big belt 21 is placed with mould 22;Roll shaft C19
One end by axle connect have electric rotating machine 23;
The outermost edge of described helical blade 11 and the outward flange smooth contact of roll shaft A7;The upper end of described supporting leg 3 is fixed
Bottom in gripper shoe 2;The plane at the minimum point place of the described sheet 15 that paves is not less than the flat of the top edge place of mould 22
Face;The plane at the minimum point place of described scraper 17 is not less than the plane at the top edge place of mould 22, and scraper 17
Width is not less than the width of mould 22;The lower section on the right side of described roll shaft D20 is placed with compound recycling bin 24.
The mode that paves that the present invention uses hopper to fix, mould moves, effectively raises the uniformity that paves of compound,
Effectively coordinating of roll shaft A and roll shaft B and helical blade, improve the uniformity that paves of compound in hopper, and to mixing
Material has carried out the mixing of final step;In order to ensure compound in mould can flat pattern, the present invention uses and paves at the beginning of sheet
Walk smooth, then make of scraper last smooth, thus the compound in ensure that mould enters into down with the state of even uniform
One operation;The present invention has the advantage smooth, that the efficiency that paves is high, easy to use that paves.
Claims (6)
1. a quartz production lying device, it includes hopper, gripper shoe and supporting leg, it is characterised in that:
Described hopper is fixing on the supporting plate, and the lower end of hopper is provided with discharging opening, and the lateral wall of described discharging opening is fixed
Having driving motor, described driving motor to connect has the middle part connection of rotating shaft A, described rotating shaft A to have roll shaft A, described roll shaft A
Side rotating shaft A on be provided with belt pulley A;The right side of rotating shaft A is provided with the middle part connection of rotating shaft B, described rotating shaft B roller
Axle B, the outer whole body of described roll shaft B is provided with helical blade, and the rotating shaft B of the side of roll shaft B is provided with belt pulley B, described
The outer whole body of belt pulley B be wound with belt, the other end of described belt is wrapped on belt pulley A;
The middle part of the bottom of described gripper shoe is provided with fixed plate, and two rows that are provided with that the bottom of described fixed plate is straggly spread out
Tile;Being provided with fixed mount in the gripper shoe on the right side of fixed plate, the bottom of described fixed mount is provided with scraper;
A described midleg has been bolted fixing portrait, and one end of described fixing portrait is provided with roll shaft C, Gu
The other end determining portrait is provided with roll shaft D, and the outer whole body of described roll shaft D is wound with big belt, another of described big belt
End is wrapped in the outer whole body of roll shaft C, and big belt is placed with mould;One end of roll shaft C is connected by axle electric rotating machine.
2. quartz production lying device as claimed in claim 1 a kind of, it is characterised in that: described helical blade is
Outward flange and the outward flange smooth contact of roll shaft A.
3. a kind of quartz production lying device as claimed in claim 1, it is characterised in that: the upper end of described supporting leg is solid
It is scheduled on the bottom of gripper shoe.
4. quartz production lying device as claimed in claim 1 a kind of, it is characterised in that: the described sheet that paves minimum
The plane at some place is not less than the plane at the top edge place of mould.
5. a kind of quartz production lying device as claimed in claim 1, it is characterised in that: the minimum point of described scraper
The plane at place is not less than the plane at the top edge place of mould, and the width of scraper is not less than the width of mould.
6. a kind of quartz production lying device as claimed in claim 1, it is characterised in that: the right side of described roll shaft D
Lower section be placed with compound recycling bin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610501297.9A CN105946102B (en) | 2016-06-30 | 2016-06-30 | A kind of quartz production lying device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610501297.9A CN105946102B (en) | 2016-06-30 | 2016-06-30 | A kind of quartz production lying device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105946102A true CN105946102A (en) | 2016-09-21 |
CN105946102B CN105946102B (en) | 2018-09-07 |
Family
ID=56902637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610501297.9A Expired - Fee Related CN105946102B (en) | 2016-06-30 | 2016-06-30 | A kind of quartz production lying device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105946102B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108818909A (en) * | 2018-06-05 | 2018-11-16 | 佛山市莫尔卡特种石材有限公司 | A kind of quartz processing automatic recipe maker and its application method |
CN112092405A (en) * | 2020-07-23 | 2020-12-18 | 科达制造股份有限公司 | Suspension type artificial stone sheet distributing device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1061152A (en) * | 1996-08-19 | 1998-03-03 | Toli Corp Ltd | Floor panel |
KR20090119491A (en) * | 2008-05-16 | 2009-11-19 | 화이버텍(주) | Device for supplying power materials |
CN203019514U (en) * | 2012-12-24 | 2013-06-26 | 安徽同步自动化科技有限公司 | Double-gear-roller feeding device |
CN203471943U (en) * | 2013-07-31 | 2014-03-12 | 北京仁创科技集团有限公司 | Material distributing device for plate forming |
CN203956697U (en) * | 2014-06-09 | 2014-11-26 | 青岛松泰伟业机械制造有限公司 | The special-purpose wax-polishing machine of a kind of furniture |
-
2016
- 2016-06-30 CN CN201610501297.9A patent/CN105946102B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1061152A (en) * | 1996-08-19 | 1998-03-03 | Toli Corp Ltd | Floor panel |
KR20090119491A (en) * | 2008-05-16 | 2009-11-19 | 화이버텍(주) | Device for supplying power materials |
CN203019514U (en) * | 2012-12-24 | 2013-06-26 | 安徽同步自动化科技有限公司 | Double-gear-roller feeding device |
CN203471943U (en) * | 2013-07-31 | 2014-03-12 | 北京仁创科技集团有限公司 | Material distributing device for plate forming |
CN203956697U (en) * | 2014-06-09 | 2014-11-26 | 青岛松泰伟业机械制造有限公司 | The special-purpose wax-polishing machine of a kind of furniture |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108818909A (en) * | 2018-06-05 | 2018-11-16 | 佛山市莫尔卡特种石材有限公司 | A kind of quartz processing automatic recipe maker and its application method |
CN112092405A (en) * | 2020-07-23 | 2020-12-18 | 科达制造股份有限公司 | Suspension type artificial stone sheet distributing device |
Also Published As
Publication number | Publication date |
---|---|
CN105946102B (en) | 2018-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101659080B (en) | Concrete product molding machine | |
KR102070960B1 (en) | Raw Material Distribution Facility and Manufacturing Method of Artificial Slab Using It | |
KR20110091610A (en) | Manufacturing system of imitation stone board | |
KR101302069B1 (en) | Apparatus for manufacturing brick and movable equipment for manufacturing brick containing the same | |
CN105946102A (en) | Spreading device for quartz production | |
CN104175392B (en) | Material distribution equipment and process for artificial stone | |
CN205364147U (en) | Wet forming device futilely of rostone | |
CN203046105U (en) | System for filling hollow bricks with polystyrene foam bead materials | |
CN1788960A (en) | Secondary material distributing method for producing crystallite brick | |
CN208392289U (en) | A kind of carbon crucible vibrating forming machine | |
CN201559243U (en) | Artificial stone plate sheet forming device | |
CN216032632U (en) | Material distribution device for artificial quartz stone plate | |
KR101200131B1 (en) | Block forming method and forming device | |
CN203125688U (en) | Material distributing device for artificial stone design-and-color product | |
CN206765180U (en) | The sulfurizing mould of wall scroll cogged V-belt | |
CN100366390C (en) | Roller polishing and molding mold for producing fin polishing sheet | |
CN209207842U (en) | Diamond granule forming die convenient to drawing of patterns | |
JP2014046506A (en) | Material supply box for concrete block molding equipment | |
CN105128310A (en) | Preparation method for man-made quartz-stone corrugated plate and screw extrusion machine | |
CN201693652U (en) | Production equipment for ceramic tiles | |
CN201195345Y (en) | Material- feeding and distributing apparatus for producing ceramic tile | |
CN204772959U (en) | Automatic material distributor | |
CN204054315U (en) | A kind of apparatus for distributing of artificial stone | |
CN211362757U (en) | Ordered conveying line for artificial culture stone molds | |
CN103786252A (en) | Expanded perlite plate forming production line and method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201110 Address after: 221700, Jiangsu, Fengxian County Xuzhou Economic Development Zone, West Sanhuan Cui Garden Village South Patentee after: FENGXIAN XINZHONGMU FEED Co.,Ltd. Address before: Yuzhou City, Xuchang City, Henan province 452570 West Industrial Zone Patentee before: YUZHOU YUANDA PLASTIC ELECTRIC APPLIANCE Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 |